EP1611361A1 - Metal expansion anchor - Google Patents
Metal expansion anchorInfo
- Publication number
- EP1611361A1 EP1611361A1 EP04704553A EP04704553A EP1611361A1 EP 1611361 A1 EP1611361 A1 EP 1611361A1 EP 04704553 A EP04704553 A EP 04704553A EP 04704553 A EP04704553 A EP 04704553A EP 1611361 A1 EP1611361 A1 EP 1611361A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- anchor
- expansion
- expansion anchor
- base part
- compression element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002184 metal Substances 0.000 title claims abstract description 7
- 230000006835 compression Effects 0.000 claims description 26
- 238000007906 compression Methods 0.000 claims description 26
- 239000000758 substrate Substances 0.000 claims 2
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
- F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
- F16B13/066—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
Definitions
- the invention relates to an expansion anchor made of metal with the features of the preamble of claim 1.
- the expansion anchor used not only has a high pull-out strength but also allows the use of screws or threaded rods.
- This requires expansion anchors made of metal with an internal thread.
- the anchoring in the tension zone, in which cracks usually occur requires that the expansion anchor has a post-expansion behavior. Since the expansion anchors, which are generally known as impact anchors, cannot expand, the document EP 0 995 914 A2 proposes an expansion anchor whose base part has an internal thread and an expansion section onto which an expansion sleeve is axially displaceably placed.
- the expansion anchor is anchored by pulling the base part of the anchor into the expansion sleeve, the expansion sleeve being braced radially in the borehole without being axially displaced.
- the publication suggests that the expansion anchor has a screw with a sleeve-like compression element attached, pre-assembled.
- the screw is screwed into the internal thread of the anchor base part to such an extent that the compression element rests on one side against the screw head and on the other side against the end face of the anchor base part facing the screw.
- the compression element ensures that there is a sufficient distance between the anchor base part and the screw head, so that the anchor base part can be sufficiently drawn into the expansion sleeve without first sitting on the screw head. In this process, the compression element is compressed axially.
- the compression element can only be used in connection with a pre-assembled screw. If, on the other hand, a particularly long screw or a threaded rod is required for fastening, since For example, if a particularly large component is to be attached or the anchor is to be used to hang pipes from a ceiling, the pre-assembled screw with compression element is unsuitable.
- the invention is therefore based on the object of creating a spreading anchor made of metal with an internal thread, which is suitable for screws, threaded rods or the like of different lengths.
- the expansion anchor with the features of claim 1.
- the expansion anchor according to the invention has a compression element which is arranged in the base part of the anchor.
- the expansion anchor can be set with screws of different lengths, for example to fasten objects of different sizes.
- the screw is screwed into the internal thread of the expansion anchor until it is seated on the compression element with its insert. This in turn sits with its other end on the bottom of the bore for the internal thread, a corresponding paragraph or the like.
- the operator feels a significant increase in the screwing torque, which signals that the expansion anchor can be inserted into the borehole in the subsurface in this state.
- the expansion anchor is pushed in until the screw rests with its head on the surface or an intermediate washer and / or the component to be fastened.
- the screw is screwed further into the internal thread. Since the screw head acts as an abutment, the base part of the anchor is pulled against the direction of insertion, thereby spreading the fixed expansion sleeve.
- the compression element is compressed. Compared to the first screwing in of the screw, this process takes place at a higher torque level and therefore with the help of tools.
- the compressibility of the compression element must be determined in such a way that there is no renewed, significant increase in torque due to the compression during the expansion process, as long as sufficient expansion of the expansion sleeve has not yet been achieved.
- the renewed increase in torque should therefore occur through the expansion of the expansion sleeve and not through the compression of the compression element.
- the screw can either remain in the expansion anchor if it already fulfills the fastening task, or it is unscrewed again and, for example, a threaded rod is screwed in instead.
- the screw is only to be understood as a setting tool.
- the compression element is preferably a plastic bushing. This enables simple manufacture by cutting to length from a tube. In addition, other materials and shapes are also conceivable, such as a steel compression spring.
- the compression element is also preferably arranged so that it cannot be lost, for example by being press-fitted or screwed into the internal thread of the anchor part. As a result, the compression element cannot be lost during storage, transportation or overhead installation.
- FIG. 1 shows the expansion anchor 1 according to the invention for fastening the component 2 to the base 3 in the state before the expansion.
- the expansion anchor 1 is made of steel and has an anchor base part 4 with an internal thread 5.
- the anchor base 4 has a reduced diameter, tapering against the direction of insertion of the expansion anchor 1, onto which one
- Expansion sleeve 7 is placed axially displaceable.
- a sleeve-like compression element 9 made of plastic. Its outer diameter is chosen so that it is joined with a slight press fit and is thereby arranged captively in the anchor base part 4.
- the screw 11 with the washer 12 is screwed into the internal thread 5 of the anchor base part 4 until the end 13 on the insertion side is seated on the compression element 9.
- the expansion anchor 1 is inserted into the borehole 10 until the washer 12 and the screw head 14 rest on the component 2 to be fastened.
- part of the anchor base part 4 protrudes into the through hole 15 of the component 2 to be fastened.
- the anchor base part 4 simultaneously acts on the component 2 in a centering manner and possibly absorbs transverse forces. If this is not desired, simply choose a correspondingly longer screw.
- the anchor base part 4 is secured against rotation.
- the anchor base part 4 is thus pulled against the direction of insertion of the expansion anchor 1, while the expansion sleeve 7 is axially open the expansion section slides and thereby anchors the expansion anchor 1.
- the compression element 9 is compressed axially and displaced radially inwards.
- the material and geometry of the compression element 9 are matched to one another in such a way that a very slight compression occurs, at least along the screwing-in path of the screw 11 necessary for the expansion of the expansion sleeve 7.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
- Joining Of Building Structures In Genera (AREA)
- Piles And Underground Anchors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20303806U DE20303806U1 (en) | 2003-03-11 | 2003-03-11 | Expansion anchor made of metal |
PCT/EP2004/000544 WO2004081393A1 (en) | 2003-03-11 | 2004-01-23 | Metal expansion anchor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1611361A1 true EP1611361A1 (en) | 2006-01-04 |
EP1611361B1 EP1611361B1 (en) | 2009-04-29 |
Family
ID=32748369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04704553A Expired - Lifetime EP1611361B1 (en) | 2003-03-11 | 2004-01-23 | Metal expansion anchor |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP1611361B1 (en) |
KR (1) | KR20050106105A (en) |
CN (1) | CN100436840C (en) |
AR (1) | AR043529A1 (en) |
AT (1) | ATE430263T1 (en) |
DE (2) | DE20303806U1 (en) |
DK (1) | DK1611361T3 (en) |
ES (1) | ES2322808T3 (en) |
PL (1) | PL377290A1 (en) |
PT (1) | PT1611361E (en) |
RU (1) | RU2005131423A (en) |
WO (1) | WO2004081393A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010016797A1 (en) * | 2010-05-05 | 2011-11-10 | Fischerwerke Gmbh & Co. Kg | expansion anchor |
JP2012026571A (en) * | 2010-06-24 | 2012-02-09 | Enupatto Kk | Anchor |
CN101914962B (en) * | 2010-08-24 | 2012-09-05 | 济南四建(集团)有限责任公司 | Building infilled wall tie bar structure |
DE102011000285A1 (en) * | 2011-01-24 | 2012-07-26 | Fischerwerke Gmbh & Co. Kg | fastener |
DE102011001557A1 (en) | 2011-03-25 | 2012-09-27 | Fischerwerke Gmbh & Co. Kg | Expansion anchor for fastening fixture to base portion, has internal thread for mounting attachment to base and shaft, in which bore is arranged with internal threads, where expansion anchor has expansion area |
CN109989974A (en) | 2017-12-29 | 2019-07-09 | 喜利得股份公司 | Fastener |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD39474A (en) * | ||||
DE2536137C2 (en) * | 1975-08-13 | 1986-04-10 | Hilti Ag, Schaan | Expansion anchor |
DE2637043C2 (en) * | 1976-08-17 | 1986-04-10 | Hilti Ag, Schaan | Dowel with spacer |
DE3730211C2 (en) * | 1987-09-09 | 1995-06-08 | Fischer Artur Werke Gmbh | Expansion dowels |
DE19848931A1 (en) * | 1998-10-23 | 2000-04-27 | Fischer Artur Werke Gmbh | Fastening element made of metal with internal thread for push-through installation |
-
2003
- 2003-03-11 DE DE20303806U patent/DE20303806U1/en not_active Expired - Lifetime
-
2004
- 2004-01-23 KR KR1020057016886A patent/KR20050106105A/en not_active Application Discontinuation
- 2004-01-23 DE DE502004009423T patent/DE502004009423D1/en not_active Expired - Lifetime
- 2004-01-23 DK DK04704553T patent/DK1611361T3/en active
- 2004-01-23 EP EP04704553A patent/EP1611361B1/en not_active Expired - Lifetime
- 2004-01-23 PL PL377290A patent/PL377290A1/en unknown
- 2004-01-23 PT PT04704553T patent/PT1611361E/en unknown
- 2004-01-23 WO PCT/EP2004/000544 patent/WO2004081393A1/en active Application Filing
- 2004-01-23 AT AT04704553T patent/ATE430263T1/en not_active IP Right Cessation
- 2004-01-23 CN CNB2004800067171A patent/CN100436840C/en not_active Expired - Fee Related
- 2004-01-23 ES ES04704553T patent/ES2322808T3/en not_active Expired - Lifetime
- 2004-01-23 RU RU2005131423/11A patent/RU2005131423A/en not_active Application Discontinuation
- 2004-03-10 AR ARP040100760A patent/AR043529A1/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO2004081393A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE502004009423D1 (en) | 2009-06-10 |
RU2005131423A (en) | 2006-02-10 |
PT1611361E (en) | 2009-05-20 |
KR20050106105A (en) | 2005-11-08 |
EP1611361B1 (en) | 2009-04-29 |
DE20303806U1 (en) | 2004-07-22 |
CN1759256A (en) | 2006-04-12 |
WO2004081393A1 (en) | 2004-09-23 |
DK1611361T3 (en) | 2009-08-10 |
ATE430263T1 (en) | 2009-05-15 |
PL377290A1 (en) | 2006-01-23 |
AR043529A1 (en) | 2005-08-03 |
ES2322808T3 (en) | 2009-06-29 |
CN100436840C (en) | 2008-11-26 |
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